University of Cambridge > Talks.cam > Semiconductor Physics > Excitation of acousto-electric vibrations in a GaAs lattice

Excitation of acousto-electric vibrations in a GaAs lattice

Add to your list(s) Download to your calendar using vCal

If you have a question about this talk, please contact K DAS GUPTA.

Preliminary results of a numerical study are presented, which show the excitation of electroacoustic modes of vibration in GaAs/AlGaAs heterostructure devices, due to abrupt changes of the voltages applied to surface gates, through piezoelectric coupling. The results are potentially significant for GaAs/AlGaAs quantum dot device applications which apply voltage pulses to the surface gates in order to perform coherent manipulation of electron charge or spin. The mechanism by which these vibrational modes may lead to decoherence in a charge-based quantum logic gate is briefly discussed.

This talk is part of the Semiconductor Physics series.

Tell a friend about this talk:

This talk is included in these lists:

Note that ex-directory lists are not shown.

 

© 2006-2019 Talks.cam, University of Cambridge. Contact Us | Help and Documentation | Privacy and Publicity